:root {
  --red: #e4141e;         /* rgb(228,20,30) */
  --red-dim: #b3101a;
  --bg: #0a0a0b;
  --bg-2: #141416;
  --card: #17171a;
  --border: #2a2a2f;
  --text: #f2f2f4;
  --muted: #9a9aa2;
  --radius: 14px;
  --max: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--red); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre {
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Code", Menlo, Consolas, monospace;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: rgba(10, 10, 11, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.3px;
}
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.links { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.links a { color: var(--muted); font-size: 0.95rem; }
.links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 4.5rem 1.25rem 2rem;
  text-align: center;
  background:
    radial-gradient(60% 55% at 50% 0%, rgba(228, 20, 30, 0.16), transparent 70%);
}
.hero-logo {
  width: 160px;
  height: 160px;
  filter: drop-shadow(0 8px 40px rgba(228, 20, 30, 0.35));
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  margin: 0.4rem 0 0.2rem;
  letter-spacing: 0.5px;
}
.tagline {
  max-width: 620px;
  margin: 0.4rem auto 1.4rem;
  color: var(--muted);
  font-size: 1.12rem;
}
.tagline strong { color: var(--red); }
.cta { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.08s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn.primary { background: var(--red); color: #fff; }
.btn.primary:hover { background: var(--red-dim); }
.btn.ghost { border-color: var(--border); color: var(--text); }
.btn.ghost:hover { border-color: var(--red); }
.sub { color: var(--muted); font-size: 0.9rem; margin-top: 1rem; }

/* Showcase */
.showcase { max-width: var(--max); margin: 1rem auto 3rem; padding: 0 1.25rem; }
.frame {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
}
.frame img { display: block; width: 100%; height: auto; }

/* Sections */
section h2 {
  text-align: center;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  margin: 0 0 1.6rem;
}
.features, .download { max-width: var(--max); margin: 0 auto; padding: 3rem 1.25rem; }

/* Feature grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  transition: border-color 0.15s ease, transform 0.08s ease;
}
.card:hover { border-color: var(--red); transform: translateY(-2px); }
.card .ico { font-size: 1.7rem; }
.card h3 { margin: 0.5rem 0 0.35rem; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); }
.card code { color: var(--red); }

/* Download */
.download { border-top: 1px solid var(--border); }
.download p { max-width: 720px; margin: 0 auto 1rem; text-align: center; color: var(--muted); }
pre {
  max-width: 720px;
  margin: 0 auto;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  overflow-x: auto;
  color: var(--text);
  font-size: 0.9rem;
}

/* Sistem gereksinimleri */
.reqs { max-width: var(--max); margin: 0 auto; padding: 3rem 1.25rem; border-top: 1px solid var(--border); }
.reqs-lead { text-align: center; color: var(--muted); max-width: 720px; margin: 0 auto 1.4rem; }
.reqs-lead strong { color: var(--text); }
.reqs-table { max-width: 760px; margin: 0 auto; overflow-x: auto; }
.reqs table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.reqs th, .reqs td { text-align: left; padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--border); }
.reqs thead th { color: var(--red); font-weight: 700; border-bottom-color: var(--red-dim); }
.reqs tbody td:first-child { color: var(--text); font-weight: 600; }
.reqs tbody td { color: var(--muted); }

.verify {
  max-width: 720px;
  margin: 1.4rem auto 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-2);
  padding: 0.4rem 1.1rem;
}
.verify summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 600;
  padding: 0.5rem 0;
}
.verify summary:hover { color: var(--text); }
.verify[open] summary { color: var(--text); margin-bottom: 0.4rem; }
.verify p { text-align: left; margin: 0.6rem 0 0.4rem; }
.verify pre { margin: 0 0 0.6rem; }

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.25rem 3rem;
  text-align: center;
  color: var(--muted);
}
footer .muted { font-size: 0.85rem; opacity: 0.8; }

@media (max-width: 520px) {
  .links { gap: 0.9rem; }
  .hero { padding-top: 3rem; }
}